Mathematics, 10.01.2020 02:31 imello51
Quality control is an important issue at acme company which manufactures light bulbs. in order to conduct testing of the life hours of their light bulbs, they randomly sampled nine light bulbs and measured how many hours they lasted (mean = 346.6).
378, 361, 350, 375, 200, 391, 375, 368, 321
4. what is the range?
a. 342.43
b. 3424.3
c. 58.5
d. 191
e. 1060
5. what is the variance?
a. 342.43
b. 3424.3
c. 58.5
d. 191
e. 10609
6. what is the standard deviation?
a. 342.43
b. 3424.3
c. 58.5
d. 191
e. 10609
Answers: 1
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